Testing and controlling device for producers of inert gases.



G. MARTINI, DEGD. M. MARTINI, EXEGUTRIX.

TESTING AND CONTROLLING DEVICE FOR PRODUCERS 0F INERT GASES.

APPLIOATION FILED SEPT. 9, 1909. 1,099,61 1 m Patented June 9, 1914.

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CARL MARTINI, or BERLIN, GERMANY; MARIA MARTINI, or nanovnn, GERMANY,ExEcU'rnIx or sari) cant. MARTINI, nnennsnn, users-non 'ro mAn'rmI anuniixn MasoIiInnnBau-nKrIEn-GESELLSCHAFT, or human, GERMANY, a con-PURATIUN h GERMANY.

. TESTING AND GONTROLLING DEVICE FOR PBQDUCEW O1? INER'I G-AEES.

Specification of Letters Patent.

Patented une a, rare.

To allwii-om it may concern:

' for controlled by Be it known that l, GARLMARTINI, a subject of theGerman Emperor, and resident of Berlin, Germany, have invented certainnew and useful improvements in Testing and Controlling Devices forProducersof' Inert Gases, of which the following is a specification.

My invention relates'to the production of inert gases suitable for theprotection of inflammable liquids (say, gasolene) contained in tanks orreceptacles from which air is excluded. I have produced such an inertgas by the combustion of a mixture of air and inflammable gas or vaporin a closed chamber to which no additional air is admitted. In thepractical operation of the apparatus it is of advantage to provide meansfor testing whether or not the mixture fed to the producer has theproper constitution. lhis ll accomplish, according to one feature of thepresent invention, by introducing a portion of such mixture into aninternal combustion engine, as the working medium therefor. Should thegaseous mixture become unsuitable, the engine will stop, thus callingattention to the fact that the apparatus is not working properly.

According to another feature of my invention, the heat of the producerof inert gases is utilized to control the operation and particularly theignition of the tell-tale engine.

its objectto insure the sup 1y of a properly proportioned combusti lemixture of as orvapor and air to the producer, and or this purpose thepumps or other devices an engine the operation of which depends uponthat of the producer of inert gases.

Reference is to be had to the accompanying drawings, in which- Figur 1shows the producer conjunc' tion with the engine, and Fig. 2 illustratesthe same parts'in connection with the devices for feeding air and fuel.

To the supply chamber-4; formed in the casing 2 I admit air and-' gas orvapor,

I either-mixed and through afsingle pipe 1 as "in Fig 1',,.or throughseparate pipes 1 and 1 asm Fig. 2.- A, partition 3 separates the Afurther feature of my invention has for feeding the elements of themixture are.

chamber 4 from the combustion chamber 5 of the producer. The combustiblemixture passes through the burner nozale 6 and after be ng thoroughlyconsumed (without the ad- IIllSSlOIl of any additional air), passes tothe place of use through the pipe '2 which 15 preferably in alinementwith the burner 6 so that the path of the combustion gases will bestraight or nearl so.

The combustion cham er 5 (with its inlet and outlet) and the burner 6constitute a producer of inert gas, which is closed entirely with theexception of such inlet and outlet, that is to say, no air can reach theproducer in addition to the amount ted througlrthe pipe 1 or one of thepipes 1 and 1 and the producer chamber 5 is closed to the surroundingair.

lt is very important that the mixture admitted to the combustion chamber5 should ha re the proper constitution, since otherwise it might notburn at all, or it might be consumed insufficiently, and in either eventthe gas leaving through the pipe 7 instead of I suitable for t eprotection of inflammable liquids. In order to test the constitution ofthe mixture, I have provided a tell-tale device, which in the particularconstruction shown consists'of an internal combustion engine 9 whichreceives its motive agent through a pipe 8 branched oil from the chamber4 and connected with the valve chamber 10 from which the working mediumpasses to the cylinder in the usual way. The engine therefore receivesas its working medium, a portion of the same gaseous mixture whl is fedto the combustion chamberb. If the mixture within the chamber 4: isweakly explosive or not explosive at all, the engine 9 will stop andthus indicate that the pro ducer is not working properly.

The flame at the nozzle 6 may become extinguished accidentally, and inthis case the mixture (containing a relatively large proportion of 0gen) would ass unconsumed to the pipe In order t at the motor 9 may stopin this case also, the igniter tube 11 of the motor may berprojectedinto the combustion chamber 5 as shown, so that ignition will not takeplace if the flame be comes extinguished accidentally or because themixture is not sutdciently combustible. These expedients for making theoperation of the motor dependent upon the proper working of the producerof inert gases, may be employed separately or jointly.

As represented in Fig. 2, the tell-tale device or engine may be utilizedto operate the devices, such as the pumps 12 and 13, which feed the gasor vapor and the air respectively through the pipes 1 and 1. For thispurpose the fly-Wheel 14 of the engine may drive a countershaft 15 bymeans of a belt 16 and a pulley 17 and the driving pulleys 18 and 19 ofthe pumps 12 and 13 are connected by belts 20 and 21 with pulleys 22 and23 respectively on said countershaft. Thus air and gas or vapor willalways be supplied in the same proportion, and if the mix ture is notproperly explosive, the motor 9 will stop, thus interrupting the feedingof the mixture and preventing the improper mixture from being forcedthrough the pipe Of course, the igniter tube arrangement described withreference to Fig. 1 may be used in this case also, that is, theoperation of the pumps 12 and 13 may be made dependent upon the properignition of the engme.

Certain features or combinations claimed in the present application arealso shown, but not claimed, in my application No, 516974 filedconcurrently herewith.

I claim as my invention:

1. The combination of a supply chamber, means for leading'air and fuelthereto, a combustion chamber, a burner connected with the supplychamber and located within the combustion chamber, an internalcombustion engine connected with said supply chamber to receive fuel andair therefrom, and an ignition tube for said engine, extending into saidcombustion chamber.

2. The combination of a supply chamber having two outlets, a burnerconnected with one of said outlets, a combustion chamber in which saidburner is located, an internal combustion engine connected with theother outlet, an ignition tube for the engine, ex tending into thecombustion chamber, and means, driven by said engine, for conveying vfuel and air to said supply chamber.

3. The combination of a supply cha mber havin two outlets, a burnerconnected with one 0 said outlets, a combustion chamber in which saidburner is located, said chamber being'inclosed and havingan outletthrough having two outlets, a burner connected with one of said outlets,a combustion chamber in which said burner is located, said chamber beinginclosed and having an outlet through Which the inert gas produced insaid chamber may be conveyed to the place of use, an internal combustionengine connected with the other outlet to receive air and fueltherefrom, and separate feeding devices, driven by said ngine, forconveying fuel and air respectively to said supply chamber in constantproportions.

5. The combination of a supply chamber having two outlets, a burnerconnected with one of said outlets, a combustion chamber in which saidburner is located, said chamber being inclosed and having an outletthrough which the inert gas produced in said chamber may be conveyed tothe place of use, an internal combustion engine connected with the otheroutlet to receive air and fuel therefrom, and two rotary pumps, drivenby said engine, for conveying fuel and air respectively to said supplychamber.

6. The combination of an inclosed producer chamber having an inlet forthe combustible mixture, aburner located within the chamber andconnected with the said inlet, an outlet for conveying the combustionproducts to the place of use, and imperforate walls extendingcontinuously from the inlet to the outlet so that the surrounding airmay have no direct access to the interior of the chamber, thus insuringthe production of an inert gas during the normal operation of theproducer, movable means for feeding the combustible mixture to the saidburner, an

internal combustion engine, a connection for leading to said engine, asits'working medium, a portion of the same mixture which is fed to theproducer, and an operative connection between the engine and the saidmovable means, todrive the latter.

In testimony whereof I'hereunto aflix my signature in the presence ofwitnesses.

CARL MARTIN Witnesses:

HENRY HASPER, VOLDEMAR HAUPT.

